Decorative plate for an in-line roller skate



FIG. 1 is a perspective view of a decorative plate for an in-line roller skate showing my new design;

FIG. 2 is a front view thereof, the rear view being a mirror image of the front view;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view of my design shown in an environment.

The broken lines in FIG. 7 are environmental only and form no part of the claimed design. 

The ornamental design for a decorative plate for an in-line roller skate, as shown and described. 